All that stuff can be bought at Guardian.
As for the Ovulation Prediction Kits, the Clear Easy Plan one (sort of the Ferrari of OPKs) is available at the NTUC Healthcare for abotu $300 and the sticks cost an additional $70. There are a variety from Malaysia and the States. None are cheap. Its about $10 per test and comes in a package of 6 or 7. Thermometers are easily bought at any pharmacy.
Have you read Taking Control of Your Fertility yet? I think its a lot more useful than all this equipment. My friend got pregnant in two months after giving it a go.